CLEVELAND Aircraft Extension Drill: 1/2", 6" Overall Lg, 135° Split Point, HSS
The CLEVELAND Aircraft Extension Drill: 1/2" is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit, model C13121. It features a 0.5000-inch diameter, 6-inch overall length, and a 135° split point, conforming…
SKU 3G-OTH-207898
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Product Description
The CLEVELAND Aircraft Extension Drill: 1/2" is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit, model C13121. It features a 0.5000-inch diameter, 6-inch overall length, and a 135° split point, conforming to NAS 907 Type B specifications.
Frequently Asked Questions
What is the CLEVELAND Aircraft Extension Drill used for?
The CLEVELAND Aircraft Extension Drill is used for drilling precision holes in aircraft structures and other aerospace applications. Its extended length and 135° split point allow access to tight spaces and reduce walking on curved surfaces, making it ideal for maintenance and assembly tasks.
What are the specifications of the CLEVELAND C13121 drill bit?
The CLEVELAND C13121 is a high-speed steel aircraft-extension drill bit with a 0.5000-inch diameter, 6-inch overall length, and a 135° split point. It conforms to NAS 907 Type B specifications and is designed for precision drilling in aerospace-grade materials.
Where to buy CLEVELAND aircraft extension drills worldwide?
You can source CLEVELAND aircraft extension drills worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location, ensuring you receive genuine NAS-spec tooling without supply-chain delays.
How to select the right CLEVELAND aircraft extension drill?
Select a CLEVELAND aircraft extension drill based on hole diameter, material hardness, and access depth. For the C13121, the 0.5000-inch diameter and 6-inch length suit standard aerospace fasteners. The 135° split point reduces thrust and improves chip evacuation in high-strength alloys.
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3G Electric supplies CLEVELAND nas-spec high-speed steel aircraft-extension drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















